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Locked on 09/22/2005 3:40:46 AM PDT by Jim Robinson, reason:
New thread: http://www.freerepublic.com/focus/news/1489163/posts |
Posted on 09/21/2005 4:19:11 PM PDT by NautiNurse
Extremely dangerous and large Category Five Hurricane Rita is churning westward across the Gulf of Mexico toward Texas. Air Force Reconnaissance indicated the central pressure has dropped to 904mb, making Rita the fifth most intense hurricane ever in the Atlantic Basin.
Hurricane and Tropical Storm Watches have been issued from Northern Mexico through the South Louisiana coastline. Galveston TX used school buses to evacuate residents. Mandatory and voluntary evacuations are in effect along the Texas coastline.
The following links are self-updating:
Public Advisory Currently published every 3 hours 5A, 8A, 11A, 2P, etc. ET
NHC Discussion Published every six hours 6A, 11A, 6P, 11P
Three Day Forecast Track
Five Day Forecast Track
Rita Forecast Track Archive
Forecast Models
Buoy Data Western Gulf of Mexico
Current Weather Warnings and Watches for Texas
Current Weather Warnings and Watches for Louisiana
Images:
Storm Floater IR Loop
GOM WV Loop
GOM IR Still Image
Visible Storm Floater Still (only visible during daylight hours)
Color Enhanced Atlantic Loop
Streaming Video: (coverage may be intermittent)
KHOU-TV/DT Houston: mms://beloint.wm.llnwd.net/beloint_khou
WWLTV NOLA
Additional Resources:
FReeper Sign In Thread Check in to let us know whether you are staying, going, and when you get there
FReepers Offering Lodging To Rita Evacuees People and/or Pet Friendly FReepers Offering Shelter
Coastal TX Evacuation Maps
KHOU Houston
KTRK ABC News Houston
Hurricane City
Wxnation Houston
Galveston Webcams
Golden Triangle Weather Page Provides Galveston Weather, Warnings, Radar, etc.
Category | Wind Speed | Barometric Pressure | Storm Surge | Damage Potential |
---|---|---|---|---|
Tropical Depression |
< 39 mph < 34 kts |
Minimal | ||
Tropical Storm |
39 - 73 mph 34 - 63 kts |
Minimal | ||
Hurricane 1 (Weak) |
74 - 95 mph 64 - 82 kts |
28.94" or more 980.02 mb or more |
4.0' - 5.0' 1.2 m - 1.5 m |
Minimal damage to vegetation |
Hurricane 2 (Moderate) |
96 - 110 mph 83 - 95 kts |
28.50" - 28.93" 965.12 mb - 979.68 mb |
6.0' - 8.0' 1.8 m - 2.4 m |
Moderate damage to houses |
Hurricane 3 (Strong) |
111 - 130 mph 96 - 112 kts |
27.91" - 28.49" 945.14 mb - 964.78 mb |
9.0' - 12.0' 2.7 m - 3.7 m |
Extensive damage to small buildings |
Hurricane 4 (Very strong) |
131 - 155 mph 113 - 135 kts |
27.17" - 27.90" 920.08 mb - 944.80 mb |
13.0' - 18.0' 3.9 m - 5.5 m |
Extreme structural damage |
Hurricane 5 (Devastating) |
Greater than 155 mph Greater than 135 kts |
Less than 27.17" Less than 920.08 mb |
Greater than 18.0' Greater than 5.5m |
Catastrophic building failures possible |
Previous Threads:
Hurricane Rita Live Thread, Part II
Hurricane Rita Live Thread, Part I
Tropical Storm Rita
Tropical Depression 18
things are not looking good, I will be very interested in the 10 am (thru) forecast track.
Wait! Let me go get my husband! Can you repeat this? :)
Going to call it a night. My prayers for all Texans! You are in my heart.
I don't know what yall are doing up there but I wish you would stop:') I can't call out and people in Texas can't get thru to me. My son in Japan however has called twice today.
Sorry to hear that she is still having difficulties. At least we are almost done with Sept, and getting closer to winter.
Your assertion that "assertation" isn't a word is laughable.
Hopefully only the bottom floors are gutted, or they'll need a new mayor.
Thanks for the info. :)
Subject: C5c) Why don't we try to destroy tropical cyclones by nuking them ?During each hurricane season, there always appear suggestions that one should simply use nuclear weapons to try and destroy the storms. Apart from the fact that this might not even alter the storm, this approach neglects the problem that the released radioactive fallout would fairly quickly move with the tradewinds to affect land areas and cause devastating environmental problems. Needless to say, this is not a good idea.
Now for a more rigorous scientific explanation of why this would not be an effective hurricane modification technique. The main difficulty with using explosives to modify hurricanes is the amount of energy required. A fully developed hurricane can release heat energy at a rate of 5 to 20x1013 watts and converts less than 10% of the heat into the mechanical energy of the wind. The heat release is equivalent to a 10-megaton nuclear bomb exploding every 20 minutes. According to the 1993 World Almanac, the entire human race used energy at a rate of 1013 watts in 1990, a rate less than 20% of the power of a hurricane.
If we think about mechanical energy, the energy at humanity's disposal is closer to the storm's, but the task of focusing even half of the energy on a spot in the middle of a remote ocean would still be formidable. Brute force interference with hurricanes doesn't seem promising.
In addition, an explosive, even a nuclear explosive, produces a shock wave, or pulse of high pressure, that propagates away from the site of the explosion somewhat faster than the speed of sound. Such an event doesn't raise the barometric pressure after the shock has passed because barometric pressure in the atmosphere reflects the weight of the air above the ground. For normal atmospheric pressure, there are about ten metric tons (1000 kilograms per ton) of air bearing down on each square meter of surface. In the strongest hurricanes there are nine. To change a Category 5 hurricane into a Category 2 hurricane you would have to add about a half ton of air for each square meter inside the eye, or a total of a bit more than half a billion (500,000,000) tons for a 20 km radius eye. It's difficult to envision a practical way of moving that much air around.
Attacking weak tropical waves or depressions before they have a chance to grow into hurricanes isn't promising either. About 80 of these disturbances form every year in the Atlantic basin, but only about 5 become hurricanes in a typical year. There is no way to tell in advance which ones will develop. If the energy released in a tropical disturbance were only 10% of that released in a hurricane, it's still a lot of power, so that the hurricane police would need to dim the whole world's lights many times a year.
From Wikipedia...
In the 1960s and 1970s, the United States government attempted to weaken hurricanes in its Project Stormfury by seeding selected storms with silver iodide. It was thought that the seeding would disrupt the storm's eyewall, causing it to collapse and thus reduce the winds. However, it was later discovered that eyewall disruption happens naturally as part of eyewall replacement cycles, and so the success of the program was impossible to gauge.
Other approaches have been suggested over time, including cooling the water under a tropical cyclone by towing icebergs into the tropical oceans; covering the ocean in a substance that inhibits evaporation; or blasting the cyclone apart with nuclear weapons. These approaches all suffer from the same flaw: tropical cyclones are simply too large for any of them to be practical.
Night all. Here's to hoping we wake up to a Cat3. :)
She's totally worried and concerned for y'all and the whole of Texas's coast. Unreal, but somebody said that the surge could go in 30 miles. Can that possibly be possible?
LOL! Eaker and Humblegunner sound like 2 tough hombres.
Thanks for the kind words.
People point and giggle when I walk by. :<
I just copy and paste. On this matter, I am a worthless mere conduit. :)
Well... it IS Wednesday and the storm isn't coming til late Friday. They have a bit of time to find their husbands, for crying out loud. Wake up people! Get the hell out!
What is this thing you call winter????
OK - which one of you saved 30 million people today?
If it was Eaker, I want to take part of the credit.
Phone lines in S.E. Texas are swamped, "all circuts are busy"
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